class CreateRolesSitesUsers < ActiveRecord::Migration
    def self.up
        create_table :roles_sites_users, :id => false do |t|
            t.column :role_id, :integer
            t.column :site_id, :integer
            t.column :user_id, :integer
        end
    end
    
    def self.down
        drop_table :roles_sites_users
    end
end